How can we improve Premiere Rush?

Change Preview quality on iPad

I’ve seen on the desktop version you can change the preview quality so that the device doesn’t have to work as hard to render the footage. This should be an option on iPad and iOS as well. That way people with older devices can edit smoothly without it lagging and stuttering. I’m on an iPad Air 2 and it’s impossible to do any editing because of how bad it is.
Preview quality options should include 100%, 75%, 50%, 25%, and even 10% so you can change the resolution it plays back. Most of the time at a mobile or tablet screen size we aren’t going to need a full 1080p preview.
Thanks!